Radio cartridge for portable video game machine



FIG. 1 is perspective view taken from the top, front and left side of the radio cartridge for portable video game machine, showing my new design;

FIG. 2 is perspective view taken from the top, rear and right side thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a top plan view thereof; and

FIG. 8 is a bottom plan view thereof. 

The ornamental design for a radio cartridge for portable video game machine, as shown and described. 